CVE-2021-45611
9.6 · CRITICALOverview
CVE-2021-45611 is a critical-severity vulnerability affecting netgear dc112a_firmware. It was published on December 26, 2021 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before 1.0.1.38, XR300 before 1.0.3.68, R8500 before 1.0.2.144, RAX75 before 1.0.3.106, R8300 before 1.0.2.144, and RAX80 before 1.0.3.106.
Remediation
Check the references section for vendor advisories and patches from netgear. Update dc112a_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| netgear | dc112a_firmware | >= 0, < 1.0.0.52 | Affected |
| netgear | r6400_firmware | >= 0, < 1.0.1.68 | Affected |
| netgear | r8300_firmware | >= 0, < 1.0.2.144 | Affected |
| netgear | r8500_firmware | >= 0, < 1.0.2.144 | Affected |
| netgear | wndr3400v3_firmware | >= 0, < 1.0.1.38 | Affected |
| netgear | xr300_firmware | >= 0, < 1.0.3.68 | Affected |
| netgear | rax200_firmware | >= 0, < 1.0.3.106 | Affected |
| netgear | rax75_firmware | >= 0, < 1.0.3.106 | Affected |
| netgear | rax80_firmware | >= 0, < 1.0.3.106 | Affected |
Frequently Asked Questions
What is CVE-2021-45611?
CVE-2021-45611 is a critical-severity vulnerability affecting netgear dc112a_firmware. It was published on December 26, 2021 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
How severe is CVE-2021-45611?
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-45611?
Check the references section for vendor advisories and patches from netgear. Update dc112a_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-45611?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-45611 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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